[LS short box]

If you decide to use your current trucks I think you will struggle to find a plow frame mount unless it's custom built. If you have to go the custom mount route make sure it just doesn't mount from the front frame horns. The frame mount must also have a diagonal brace the goes back on the frame. I had to mod mine a bit since my Jeep is lifted 3". I added extended bump stops in the front because the weight of the plow when its up is pretty heavy.
If you buy a used plow (mine was) don't buy the old cable control style. Mine is control by wire. Newer ones are control by wireless. Used look for none beat on plows. I store mine indoors so mice and rain can't get at it.